Error
Error Code:
1706
MySQL Error 1706: Primary Key Update Conflict
Description
This error occurs in MySQL when a single SQL statement attempts to modify a primary key or partition key column, but the table being updated is referenced multiple times within the same statement. This leads to an ambiguous or conflicting update path for the key, preventing the operation from completing.
Error Message
Primary key/partition key update is not allowed since the table is updated both as '%s' and '%s'.
Known Causes
3 known causesSelf-Referencing UPDATE with Aliases
An UPDATE statement attempts to modify a primary or partition key column of a table that is also referenced using different aliases within the same query.
Subquery Key Modification Conflict
An UPDATE statement includes a subquery that references the same table and indirectly tries to modify the primary or partition key column of the outer table.
Multiple Joins on Key Column
The UPDATE statement joins a table to itself multiple times, and the logic inadvertently leads to conflicting attempts to update the primary or partition key column.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service